Home / 20,573.04-28,393.60-12,613.84

Finding the Fourth Proportional to 20,573.04, 28,393.60 and 12,613.84

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Solution

The fourth proportional to 20,573.04, 28,393.60 and 12,613.84 is: 17,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.04 : 28,393.60 = 12,613.84 : x
  2. Step 2: Convert to fraction form
    20,573.04/28,393.60 = 12,613.84/x
  3. Step 3: Cross multiply
    20,573.04x = 28,393.60 × 12,613.84
  4. Step 4: Simplify right side
    20,573.04x = 358,152,327.42
  5. Step 5: Solve for x
    x = 358,152,327.42/20,573.04
  6. Step 6: Final answer
    x = 17,408.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.